chemische formule: 1. 1 g Al / l 2 to 5% HNO3 2. 1 g Al / l 2 to 5% HCl 3. 10 g Al / l 2 to 5% HNO3 4. 10 g Al / l 2 to 5% HCl 5. 8.948 g AlCl3.6H2O / l H2O 6. 13.903 g Al(NO3)3.9H2O / l 2 to 5% HNO3 7. 8.948 g AlCl3.6H2O / l 2 to 5% HCl